diff --git a/cmd/promtool/tsdb.go b/cmd/promtool/tsdb.go
index 844a387c4..4e27f69c0 100644
--- a/cmd/promtool/tsdb.go
+++ b/cmd/promtool/tsdb.go
@@ -29,20 +29,19 @@ import (
 	"text/tabwriter"
 	"time"
 
-	"github.com/prometheus/prometheus/promql/parser"
-	"github.com/prometheus/prometheus/storage"
-	"github.com/prometheus/prometheus/tsdb/chunkenc"
-	"github.com/prometheus/prometheus/tsdb/index"
-	"golang.org/x/exp/slices"
-
 	"github.com/alecthomas/units"
 	"github.com/go-kit/log"
+	"golang.org/x/exp/slices"
 
 	"github.com/prometheus/prometheus/model/labels"
+	"github.com/prometheus/prometheus/promql/parser"
+	"github.com/prometheus/prometheus/storage"
 	"github.com/prometheus/prometheus/tsdb"
+	"github.com/prometheus/prometheus/tsdb/chunkenc"
 	"github.com/prometheus/prometheus/tsdb/chunks"
 	tsdb_errors "github.com/prometheus/prometheus/tsdb/errors"
 	"github.com/prometheus/prometheus/tsdb/fileutil"
+	"github.com/prometheus/prometheus/tsdb/index"
 )
 
 const timeDelta = 30000